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Organic intelligent glass with performance of heat storage and heat release and preparation method thereof

A smart glass, heat storage and release technology, applied in the direction of heat exchange materials, chemical instruments and methods, can solve the problems of supercooling and phase separation, affecting the use, etc., to reduce energy consumption, simple preparation method, easy to produce Compositing and using effects on a large scale

Inactive Publication Date: 2011-10-19
HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most inorganic phase change materials are corrosive, and have the disadvantages of supercooling and phase separation during the phase change process, which affect their use

Method used

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  • Organic intelligent glass with performance of heat storage and heat release and preparation method thereof
  • Organic intelligent glass with performance of heat storage and heat release and preparation method thereof
  • Organic intelligent glass with performance of heat storage and heat release and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] In this embodiment, the organic smart glass with heat storage and heat release performance is based on polymethyl methacrylate, and polyethylene glycol is an intelligent heat storage and release material. The number average molecular weight of polyethylene glycol is 2000, which is equivalent to The variable temperature is 41-46°C.

[0030] In this embodiment, the organic smart glass with heat storage and heat release properties is prepared as follows:

[0031] Add 25g of newly distilled methyl methacrylate, 2.5g of polyethylene glycol and 25mg of initiator benzoyl peroxide into the conical flask. Wrap a layer of plastic wrap, then tie it tightly with a rubber band, seal it and heat it in a water bath at 70-90°C for pre-polymerization. When the viscosity of the solution system reaches 0.8-1.0 Pa·s, immediately stop heating and cool to room temperature to terminate the polymerization reaction Obtain the prepolymer; pour the obtained prepolymer into the mold, be careful n...

Embodiment 2

[0033] In this embodiment, the organic smart glass with heat storage and heat release performance is based on polymethyl methacrylate, and polyethylene glycol is an intelligent heat storage and release material. The number average molecular weight of polyethylene glycol is 2000, which is equivalent to The variable temperature is 41-46°C.

[0034]In this embodiment, the organic smart glass with heat storage and heat release properties is prepared as follows:

[0035] Add 25g of newly distilled methyl methacrylate, 5g of polyethylene glycol and 5mg of initiator benzoyl peroxide into the conical flask. In order to prevent water vapor from entering the conical flask during prepolymerization, shake well and wrap Put a layer of plastic wrap on it, then tie it tightly with a rubber ring, seal it, and heat it in a water bath at 70-90°C for pre-polymerization. When the viscosity of the solution system reaches 0.8-1.0 Pa·s, immediately stop heating and cool to room temperature to termin...

Embodiment 3

[0037] In this embodiment, the organic smart glass with heat storage and heat release performance is based on polymethyl methacrylate, and polyethylene glycol is an intelligent heat storage and release material. The number average molecular weight of polyethylene glycol is 2000, which is equivalent to The variable temperature is 41-46°C.

[0038] In this embodiment, the organic smart glass with heat storage and heat release properties is prepared as follows:

[0039] Add 25g of newly distilled methyl methacrylate, 7.5g of polyethylene glycol and 10mg of initiator benzoyl peroxide into the conical flask. Wrap a layer of plastic wrap, then tie it tightly with a rubber band, seal it and heat it in a water bath at 70-90°C for pre-polymerization. When the viscosity of the solution system reaches 0.8-1.0 Pa·s, immediately stop heating and cool to room temperature to terminate the polymerization reaction Obtain the prepolymer; pour the obtained prepolymer into the mold, be careful n...

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Abstract

The invention discloses organic intelligent glass with the performance of heat storage and heat release and a preparation method thereof. In the organic intelligent glass, polymethylmethacrylate is taken as a matrix material, and polyethylene glycol is taken as an intelligent heat storage and release material, wherein the addition amount of the polyethylene glycol is 10 to 30 percent based on that of the matrix material. The preparation method comprises the following steps of: mixing the polyethylene glycol, a polymethylmethacrylate monomer and an initiator, performing pre-polymerization by thermal initiation at a high temperature, pouring into a die, and polymerizing and demolding to obtain a finished product. The preparation method is simple, the added polyethylene glycol serving as a heat storage material is non-toxic and harmless, and cannot pollute an environment, and a production process is mature, so the organic intelligent glass is easy to produce and synthesize and is used ona large scale. The organic intelligent glass can be applied to temperature regulating fabrics and building materials.

Description

1. Technical field [0001] The invention relates to a high-efficiency energy-saving building material and a preparation method thereof, in particular to an organic intelligent glass with heat storage and heat release performance and a preparation method thereof. 2. Background technology [0002] According to statistics, my country's building energy consumption has reached 30% of the total social energy consumption. With the expansion of my country's urbanization scale, the advancement of urban construction, and the improvement of people's living standards, building energy consumption will increase year by year. In 1996, my country's construction consumed 330 million tons of standard coal annually, accounting for 24% of the total energy consumption. By 2001, it had reached 376 million tons, accounting for 27.6% of the total consumption, with an annual growth rate of 5 / 1000. According to forecasts, my country's building energy consumption will climb to more than 35% in a relati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L33/12C08L71/08C09K5/06C08F120/14
Inventor 张忠平王振阳张建
Owner HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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